Your client has anaphylaxis listed as a penicillin allergy. Which antibiotic would be safe for your client to receive?
cephalexin (Keflex).
cefaclor (Ceclor).
piperacillin/tazobactam (Zosyn).
levofloxacin (Levaquin).
The Correct Answer is D
Levofloxacin (Levaquin) is a fluoroquinolone antibiotic that is not structurally related to penicillin and has a very low risk of cross-reactivity with penicillin.

Levofloxacin can be safely used in patients with penicillin allergy unless they have a history of hypersensitivity to other fluoroquinolones.
Choice A is wrong because cephalexin (Keflex) is a first-generation cephalosporin that has a similar side chain to some penicillins and may cause cross-reactivity in penicillin-allergic patients. The risk of cross-reactivity is higher for first- and second-generation cephalosporins than for third- and fourth-generation cephalosporins.
Choice B is wrong because cefaclor (Ceclor) is a second-generation cep
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Limiting fluid intake can lead to dehydration and concentrated urine, which can irritate the bladder and increase the risk of infection. Older adults should drink about 2 liters of fluid per day unless they have a medical condition that requires fluid restriction.
Choice A is correct because taking diuretics in the morning can reduce nocturia and improve sleep quality.
Choice C is correct because using a commode next to the bed can prevent falls and injuries that may occur when trying to reach the bathroom in a hurry.
Choice D is correct because using a commode in the room can preserve dignity and comfort, and reduce skin breakdown and odor that may result from wearing adult briefs.
Correct Answer is B
Explanation
This is the priority nursing diagnosis for a client who has had vomiting and diarrhea for the past three days because it poses the greatest threat to the client’s health and well-
being. Fluid loss can lead to hypovolemia, hypotension, shock, electrolyte imbalance, and renal failure.
Choice A is wrong because fatigue is a subjective symptom that may or may not be related to fluid loss.
It is not a priority over fluid volume deficit.
Choice C is wrong because impaired skin integrity is a potential problem that may occur due to irritation from vomiting and diarrhea, but it is not a priority over fluid volume deficit.
Choice D is wrong because imbalanced nutrition is a potential problem that may occur due to vomiting, but it is not a priority over fluid volume deficit.
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